刘徽用割圆术得到的圆周率称为徽率,化成分数就是() a. 22/7 b. 157/50 c. 335/113 d. 120/37
在人的社会性需要获得满足的情况下产生的体验是( )。
part i (note-taking) directions: listen to a talk about light and health. take notes and complete the following summary. can light affect your health? many researchers believe that light can affect both your physical and your (1) .
directions: listen to the news item and choose the best answer to complete the following sentences. opposition parties are demanding after a violent protest over voting problems tuesday.
directions: listen to the passage and choose the best answer to each of the following questions. how effectively can the average person learn during sleep as in the same period during the day?
()学习理论认为学习是学生建构自己的知识的过程,学生是信息意义的主动建构者。
part ii. passage (shadowing and gist) directions: listen to the passage and choose the best answer to each of the following questions. what does the speaker really describe in the speech?
choose from the following groups of words the one you hear. each of the words will be read once only.